Super Strong Neodymium Magnet N42 4 x 1/2 x 1/4" Permanent Magnet Block, The World's Strongest & Most Powerful Rare Earth Magnets by Applied Magnets: Amazon.com: Industrial & Scientific
40 mm x 20 mm x 10 mm N42 neodymium block magnets
15mm dia x 5mm thick N42 Neodymium Magnet with 2mm Diametric Hole
3/8 x 1/4 Inch Neodymium Rare Earth Disc Magnets N42 (24 Pack) for Sale | totalElement
Bar (Block) Neodymium Iron Boron Magnets, N42
Neodymium Rare-Earth Magnets N42 50PCS 4mm x 2mm + Optional Super Glue | DailyPuzzles
10mm dia x 1.5mm thick N42 Neodymium Magnet - 0.77kg Pull